:root {
  --color-primary: #080808;
  --color-on-primary: #ffffff;
  --color-ink: #080808;
  --color-body: #363636;
  --color-body-mid: #5a5a5a;
  --color-mute: #898989;
  --color-hairline: #d8d8d8;
  --color-canvas: #ffffff;
  --color-accent-purple: #7a3dff;
  --color-accent-pink: #ed52cb;
  --color-accent-blue: #3b89ff;
  --color-accent-orange: #ff6b00;
  --color-accent-green: #00d722;
  --rounded-sm: 4px;
  --rounded-md: 8px;
  --font: "WF Visual Sans Variable", Inter, system-ui, Segoe UI, PingFang SC, Microsoft YaHei, sans-serif;
}
* { box-sizing: border-box; }
html { background: #ececec; }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.55;
  padding-bottom: 64px;
  letter-spacing: -0.16px;
}
a { color: var(--color-ink); text-decoration: none; }
.top {
  padding: 14px 16px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--color-hairline);
}
.logo { color: var(--color-ink); font-weight: 600; }
.back { font-size: 12px; color: var(--color-mute); }

.hero { padding: 28px 16px; }
.hero .eyebrow {
  font-size: 12px; font-weight: 500; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--color-body-mid); margin: 0 0 8px;
}
.hero h1 { font-size: 32px; font-weight: 600; letter-spacing: -0.6px; margin: 0 0 8px; line-height: 1.1; }
.hero p { margin: 0; color: var(--color-body); font-size: 14px; }

.block { padding: 16px; }
.block h2 { font-size: 22px; font-weight: 600; margin: 0 0 12px; }
.cell {
  display: block; border: 1px solid var(--color-hairline); border-radius: 8px;
  padding: 16px; margin-bottom: 8px; color: var(--color-ink);
}
.cell:hover { text-decoration: none; }
.cell h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.cell p { margin: 0; color: var(--color-body); font-size: 13px; }
.row {
  display: flex; justify-content: space-between; gap: 8px;
  padding: 10px 0; border-bottom: 1px solid var(--color-hairline); font-size: 14px;
}
.row:last-child { border-bottom: 0; }
.row span { color: var(--color-mute); }
.ph {
  background: #f4f4f4; color: var(--color-mute);
  height: 120px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; margin-bottom: 12px; border-radius: 8px;
}
.swatch { height: 8px; border-radius: 4px; margin-bottom: 10px; }
.s1 { background: var(--color-accent-purple); }
.s2 { background: var(--color-accent-pink); }
.s3 { background: var(--color-accent-blue); }
.s4 { background: var(--color-accent-orange); }
.s5 { background: var(--color-accent-green); }

form label { display: block; margin: 0 0 4px; font-size: 14px; font-weight: 500; }
form input, form textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--color-hairline);
  border-radius: 4px; font: inherit; margin-bottom: 12px;
}
form button {
  width: 100%; padding: 12px; border: 0; background: var(--color-primary);
  color: #fff; font: inherit; font-weight: 500; border-radius: 4px;
}

.tab {
  position: fixed; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 100%; max-width: 390px;
  display: flex; background: #fff; border-top: 1px solid var(--color-hairline);
}
.tab a { flex: 1; text-align: center; padding: 10px 0 12px; font-size: 11px; font-weight: 500; color: var(--color-mute); }
.tab a.on { color: var(--color-primary); }

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }